iStock/Thinkstock(SAN FRANCISCO) -- No criminal charges will be filed against Eric Slighton, a man who allegedly posed as a security agent at San Francisco International Airport last month and privately viewed a couple of women.

California's San Mateo County District Attorney says while it is illegal to impersonate a police officer, it's not illegal to impersonate a TSA agent.

The DA says his office has been unable to track down the two women and have not found surveillance footage.

People convicted of impersonating federal, state, or local law enforcers can face up to five years in prison.